Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shen Buswell0
Date of Patent
September 30, 2008
0Patent Application Number
108344620
Date Filed
April 29, 2004
0Patent Primary Examiner
Patent abstract
A method for forming an opening through a substrate includes removing a first portion of a first face of a substrate to form a first recessed surface oblique to the first face and removing a second portion of the substrate to form a passage extending through the substrate such that the passage is bordered by the first surface.
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